Attachment for telephone-receivers.



No. 820,463. I PATENTED MAY 15, 1906.

G. ZIMMERMAN.

ATTACHMENT FOR TELEPHONE RECEIVERS. APPLICATION FILED NOV. 4, 1905.

Elawezntm:

Witngogeo South Dakota,

UNITED STATES PATENT- OFFIGE.

ATTACHMENT on TELEPHONE-RECEIVERS.

Specification of Letters Patent. Application filed November 4, 1905. Serial No. 285.901-

Patented ma 15, 1906.

To all whom it mag concern;

Be it known that I, CASPER Z1MMERMAN,a

citizen of the United States, residing at Aberdeen, in the county of Brown and State of have invented certain new and useful Improvements in Attachments for Telephone-Receivers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in attachments for tele hone- I receivers for mufliing one of the ears 0 a person while the receiver is held'to the other ear,

and comprises a simple and efficient mechanismwhich may be easily and quickly applied to an ordinary receiver and as conveniently removed, if desired.

More specifically the invention comprises a flanged ring having a grooved circumfer ence adapted to fit over the flaring end of a receiver and held thereon by friction and supporting a resilient strip to which is secured a flanged disk or cup having a fabric about the edge thereof to take up vibrations. My invention consists, further, in various details of construction andjarrangements of par s, which will be hereinafter fully described and then specifically defined in the appended claim. I illustrate my invention in the accomanying drawings,-in which'-.

-Figure 1 is a perspective view showing the applicationof my device. spective view of the device detached from a receiver, and Fig. 3 is a sectional view through the'part of the apparatus which at-' taches to the receiver.

Reference now being had to the details of the drawings by letter, A designates a receiver of the usual construction, and B is a resilient ring having a flange B projecting from one face thereof with its outer circumference flush with the circumference of the ring. The opening in said -r1n is of smallerthan the diameter 0 the opening I in the flange,

said flange is-concaved and adapted to fit diameter and the inner circumference of over the flaring end of the receiver. A por Fig.2 is a per-- tion of the inner'face of said ring serves as a stop against which the end of the receiver contacts. Theouter face of said ring is preferably covered with a fabricD 'of some mateiial ada ted to take up vibrations. Secured to te circumference of said flange is a resilient metallic strip E, which is adapted to partially surround the head of a person, and F is a cup made of any suitable material and to which one end of said resilient stri is secured. A strip offabric K is fastene to the marginal edge of the flange of said cup for the purpose of taking up an vibration which mig t be transmitted our the receiver through the resilient strip; r i

In the application of my'device when the receiver is p aced to one ear of a person. the cup may be adjusted over the other ear and entirely surround the margin of the ear with the edge of the flange of said on contact with the side of the head about the ear, thus secu'rely keeping any sound from entering the ear thus protected with the cupl and affording better conditions under whic resting in the person may hear the sounds transmitted over a telephone and throu h the receiver. From the foregoing it wilIbe observed that a simple and eflicient device is aflorded which may be easily and quickly attached to ,the end of a receiver and easily removedtherefrom when desired. l

Having thus fully described my invention, .what I claim as new, Letters Patent, is

In combination with a telephone-receiver, a cup of pliable material with a-fabric about the marginal edge thereof, a strap of resilient 8 5 and desire tosecure by metal fastened to the bottom of said cup, one

end of said stra being angled, a resilient ring' fastened to sai angled end, said ring having a. flange upon one side thereof, the inner marginal outline of the opening in said ring being concaved and adapted to receive the flaring end of a receiver, said flange serving to prevent the receiver from passing through the opening in the ring, as setforth. In testimony whereofI hereunto aflix my signature in the presence oftwo witnesses.

CASPER ZIMMERMANL.

Witnesses:

I B; BUNDY, Amos N. GOODMAN. 

